Grade 2 Titanium Sheet, ASTM B265 — Rolled in Baoji, Cut to the Size You Order

Опубликовано Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd от 2026-11-04

Grade 2 titanium sheet · ASTM B265 · stock & cut to size

Grade 2 is the commercial-purity workhorse of titanium — the best balance of formability, weldability and corrosion resistance among the unalloyed grades. SXQYTD stocks Grade 2 titanium sheet to ASTM B265, sheared or laser-cut to your size, with mill test certificate and PMI verification. Below is the procurement detail that decides thickness, temper and cut before you issue a PO.

Material	Grade 2 (UNS R50400)	Principle	Self-healing TiO₂ film resists chloride
Form & stock	Sheet 0.5–4.75 mm; ~400 t on hand	Industry	Chemical, marine, medical, plating
Standard	ASTM B265 / ASME SB-265	Lead time	1–2 days stock; 3–5 days cut to size

1. What Grade 2 titanium sheet is — by grade and by form

By grade, Grade 2 (UNS R50400) is unalloyed commercial-purity titanium — the middle of the four CP grades (Gr1 softest and most formable, Gr4 strongest). It keeps good weldability and formability while adding more strength than Gr1, which is why it is the default grade for corrosion service. By form, ASTM B265 draws the line at 4.76 mm (3/16 in): material at or below that is sheet (cold-rolled for tight tolerance and clean surface), at or above it is plate (hot-rolled). Coil and strip are the same Grade 2 alloy in continuous form for stamping and forming.

2. Why Grade 2 — material vs. medium vs. corrosion

Grade 2's TiO₂ film shrugs off chlorides and oxidizing acids, so it is the all-round choice where 316L pits. The selection logic:

Medium	Recommended grade	Why
Seawater, brine	Gr2	Best all-round chloride resistance.
Wet chlorine, hypochlorite, nitric	Gr2	Strongly oxidizing; film stays stable.
Dilute HCl / H₂SO₄ with oxidizer	Gr2	Oxidizer keeps the film alive.
Reducing acid, no oxidizer	Gr7 / Gr12	Pd/Mo needed; Gr2 would be attacked.
Thin / deep-formed parts	Gr1	Higher ductility for forming.

Three limits to keep in mind: (1) above ~315°C Grade 2 absorbs oxygen and embrittles, so it is a room/low-temperature grade, not a high-heat one; (2) titanium has poor anti-galling behaviour, so threads and sliding fits need lubrication or separate nuts; and (3) fatigue is notch-sensitive — avoid sharp corners and notches in design. We flag these on the drawing review rather than after delivery.

3. Technical standards we supply to

• Material: ASTM B265 / ASME SB-265 Grade 2, MTC EN 10204 3.1 with chemistry and mechanicals.
• Cross specs: AMS 4911 (aerospace sheet), GB/T 3621 (China), DIN 17860, ISO 5832-2 (medical).
• Chemistry (B265): Fe ≤ 0.30 %, O ≤ 0.25 %, C ≤ 0.10 %, N ≤ 0.03 %, H ≤ 0.015 %.
• Mechanical (annealed): tensile ≥ 345 MPa, yield ≥ 275 MPa, elongation ≥ 20 %.
• Verification: PMI per heat/piece, thickness tolerance per B265, surface free of α-case.

4. Manufacturing flow — from melt to your size

1) Titanium sponge + additions → triple VAR melting → 2) Forging to slab → 3) Hot rolling → 4) Cold rolling to gauge → 5) Vacuum annealing → 6) Pickling / descaling → 7) Leveling and straightening → 8) Shearing or laser cut to size → 9) PMI and inspection → 10) Export packing. Grade 2 is the easiest CP grade to form — most bends are done cold at room temperature with no post-heat.

5. Key performance

Item	Control value	Note
Tensile strength	≥ 345 MPa	Annealed, per B265.
Yield strength	≥ 275 MPa	Good for light structures.
Elongation	≥ 20 %	Formable cold.
Density	4.51 g/cm³	~60 % of steel weight.
Thickness tolerance	Per B265 (e.g. ±0.04 mm @ 1 mm)	Cold-rolled tight.

6. Application industries

Industry	Medium	Why Grade 2
Chemical / process	Cl₂, seawater, acid	Linings, trays, tube sheets.
Marine / desalination	Seawater, brine	No pitting; light weight.
Electroplating	Acid bath, anodizing	316L fails; Gr2 survives.
Medical / device	Body / sterile	Biocompatible, ISO 5832-2.
Heat exchanger	Cooling water	Baffles, tube sheets.

7. Selection guide

By medium: oxidizing or chloride → Gr2; reducing acid without oxidizer → Gr7/Gr12; thin/deep-formed → Gr1; higher strength → Gr3/Gr4. By thickness: below 4.76 mm is sheet (cold-rolled, tight tolerance) and at/above is plate (hot-rolled) — pick sheet for formed or thin parts, plate for structural. Send medium, temperature, thickness and quantity; we confirm grade and cut in one reply.

8. Customizable items & accessories

• Shearing, laser or waterjet cut to size; zero-cut (零切) from stock, small qty welcome.
• Edge deburr, chamfer, and bending or light forming to drawing.
• Surface: pickled, bright-annealed, or sandblasted per spec.
• Painted / blind marking, PMI report, and sample pieces on request.
• Optional third-party inspection (SGS / TUV) and extended heat traceability.

9. Lead time, test reports & warranty

Item	Commitment
Lead time	1–2 days from stock; 3–5 days cut to size.
Test reports	MTC 3.1, PMI, dimensional, surface report.
Warranty	12 months against material and workmanship defects from shipment.

10. FAQ

What is the difference between Grade 2 sheet and Grade 2 plate?

Same alloy, different thickness and rolling route. ASTM B265 sets the line at 4.76 mm: at or below it is sheet (cold-rolled, tighter tolerance, cleaner surface); at or above it is plate (hot-rolled). For formed or thin parts use sheet; for structural blocks use plate.

Can you cut small quantities?

Yes. We zero-cut (零切) from ~400 t of Gr2 stock — you buy the size and quantity you need, not a full mill coil. Send the outline or dimensions and we quote the cut piece with MTC and PMI.

Grade 2 or Grade 7 for my acid?

If the medium is oxidizing or contains chloride (wet chlorine, hypochlorite, seawater), Grade 2 is correct and cheaper. If it is a reducing acid with no oxidizer (dilute HCl/H₂SO₄), use Grade 7 or Grade 12. Send the exact medium and we confirm the grade.